Fuel pump control



FUEL PUMP CONTROL Filed Maranza, 1937 ATTQRNEYS Patented June 7, 1938 UNITED STATES PATENT OFFICE FUEL PUMP CONTROL James M. Williams, Joplin, Mo., assignor of onethird to C. R. Morgenthaler, Joplin, Mo.

Application March 22, 1937, Serial No. 132,452

1 Claim.

5 pumps to be increased and decreased simultaneously for the purpose of controlling the operation of the engine.

With these and other objects in View, this invention consists in certain' novel features of construction, combination and arrangement of parts 5 form a part of a Diesel engine (not shown) and includes a base 2, an upright guide means 3 for slidably supporting adjustable spring-pressed pump tappets 4, the lower ends of which are pivoted to rocker arms 5. The rocker arms 5 are supported for rocking motion on a roller 6 and engage with cams 'I of a cam shaft 8 journaled in uprights 9 secured on the base 2. The cam shaft 8 is driven by the Diesel engine (not shown) Springs III on the tappets 4 act to retain the rocker arms 5 in engagement with the cams l.

Mounted for sliding movement relative to the base 2 is a carriage II and on which is journaled v the roller 6. Also journaled on the carriage I I is a roller I2 which travels upon tracks I3 formed 0n the base 2. Rack bars I4 are formed on the base 2 and are engaged by gears I5 secured to 5 the roller I2 and one end of the roller is equipped with a crank handle I6. By rotating the roller I2 the carriage will be caused to move on the base 2 and thereby vary the location of the pivot 6 on the rocker arms 5. pivot roller with respect to the rocker arms 5 brings about longer or shorter movements to the tappets 4 and the movements of the tappets 4 beingvaried in the manner described increases and decreases the strokes of the fuel pumps engaged by the tappets, consequently varying the output of fuel of the pump and in this way controlling the operation of the Diesel engine.

What is claimed is:

A control for fuel pumps for Diesel engines comprising a supporting structure including guides slidably supporting pump actuating tappets, a cam shaft supported by said structure, rocker arms connected to the tappets and engaging the cams of the cam shaft, a roller acting 25 respect to the rocker arms. 35

JAMES M. WILLIAMS.

The varying of the 10 

